APA-referens (7:e uppl.)

Turner, M., Matthews, L., & Ebers, G. (2008). Teaching Video NeuroImage: The "Fonzarelli" sign - Focal thumb dystonia as an early manifestation of Parkinson disease.

Chicago-referens (17:e uppl.)

Turner, M., L. Matthews, och G. Ebers. Teaching Video NeuroImage: The "Fonzarelli" Sign - Focal Thumb Dystonia as an Early Manifestation of Parkinson Disease. 2008.

MLA-referens (9:e uppl.)

Turner, M., et al. Teaching Video NeuroImage: The "Fonzarelli" Sign - Focal Thumb Dystonia as an Early Manifestation of Parkinson Disease. 2008.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.